Upstream/
DownstreamRefers to 5' or 3' to a reference point in
RNA. In double-
stranded
DNA,
upstream/
downstream is relative to a
transcription unit: up to down is the direction of
transcription.
Other Resources ...
Full article >>>A convention on
DNA related to the position and direction of
transcription by
RNA polymerase (5'3').
Downstream (or 3' to) is in the direction of
transcription whereas
upstream (5' to) is in the direction from which the
polymerase has come.
Full article >>>Upstream A
sequence located in front of a particular
site relative to the direction of
transcription and
translation (i.e. located in the 5' direction relative to a particular
site).
Full article >>>UpstreamThe region extending in the 5' direction from a
gene.
Related Terms:
Gene ...
Full article >>>Upstream Patents and
Downstream Products: A Tragedy of the Anticommons?
Full article >>>UPSTREAM - Identifies
sequences located in a direction opposite to that of
expression; for example, the
bacterial
promoter is
upstream of the
initiation codon. In an m
RNA molecule,
upstream means toward the 5' end of the
molecule.
Full article >>>Upstream/
Downstream: In an
RNA, anything towards the 5' end of a reference point is "
upstream" of that point. This orientation reflects the direction of both the synthesis of m
RNA, and its
translation - from the 5' end to the 3' end.
Full article >>>the region
upstream of a
gene to which
RNA polymerase binds
Source: Jenkins, John B. 1990.
Human Genetics, 2nd Edition. New York: Harper & Row
What Topic Is Your
BIOLOGY Paper On?
Full article >>>Anything further
upstream (but not an
enhancer or other
regulatory region whose influence is positional/orientation independent)
Specific
transcription factor binding sites ...
Full article >>>A region of
DNA extending 150-300 bp
upstream from the
transcription start site that contains
binding sites for
RNA polymerase and a number of
proteins that regulate the rate of
transcription of the adjacent
gene.
Full article >>>The
sequence consists of 4-9
purine residues, located 8-13 bp
upstream of the
initiation codon.
Full article >>>Where several alternative
polyadenylation sites are found, preference is governed by a third
sequence element
upstream of AAUAAA.
PolyA tails are thought to function in m
RNA stability and in initiation of
translation.
Full article >>>67-75 8 A role for
upstream binding factor in
organizing ribosomal
gene chromatin Jane E. Wright, Christine Mais, Jos-Luis Prieto and Brian Mcstay..........77-84 9 Nutrient-regulated
gene expression in
eukaryotes Richard J.
Full article >>>The core
promoter of
protein-encoding genes also contains
binding sites for the basal
transcription complex and
RNA polymerase II, and is normally within about 50
bases upstream of the
transcription initiation
site.
Full article >>>The small subunit of the
ribosome binds to a
site "
upstream" (on the 5' side) of the start of the
message.
It proceeds
downstream (5' -> 3') until it encounters the
start codon AUG.
Full article >>>But if it receives an
upstream signal from some kind of growth factor
receptor which informs the
cell interior that the
cell has encountered a growth factor, ...
Full article >>>Industrial pollutants that are dumped
upstream of estuaries have rendered many marine
habitats unsuitable for life. Again, tighter regulations have been used to prevent further destruction of the ocean
biomes.
Full article >>>If, for example, the
population in question is a type of frog and the distinction between two groups is that individuals living
upstream are generally white, while those found in the lowlands are black, ...
Full article >>>function without any
promoter activity of its own. They are located 10 to 50 kb
downstream or
upstream of a
gene. They may be
tissue-specific. The
enhancer effect is mediated through
sequence-specific
DNA-binding
proteins (see also
silencer
).
Full article >>>Any two branch tips sharing the same immediate node are most closely related. All taxa that can be traced directly to one node (that is they are "
upstream of a node") are said to be members of a
monophyletic group.
Full article >>>'"/>